A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5935-01-438-6676
NSN 6620-01-085-8688
NSN 6130-01-630-6645
NSN 5990-01-316-9477
NSN 5925-01-391-7718
NSN 5905-01-215-1546
NSN 6130-01-585-9233
NSN 5915-00-232-3387
NSN 6645-00-470-5310
NSN 5965-01-339-7665
NSN 6110-00-928-6624
NSN 5915-01-487-3883